Definition & Meaning of "predicative expression"

What is a "predicative expression"?

A predicative expression is a word or group of words that provides information about the subject of a sentence, usually following a linking verb. This expression typically includes an adjective or a noun that describes or identifies the subject, helping to complete the meaning of the sentence. For example, in the sentence "The sky is blue," the predicative expression "blue" describes the subject "the sky." Similarly, in the sentence "She is a doctor," the predicative expression "a doctor" identifies the subject "she." Predicative expressions are essential for conveying attributes, characteristics, or identities, contributing significantly to the overall meaning and clarity of a sentence.